[INFO] updating cached repository trha/dwrite-everywhere
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/trha/dwrite-everywhere
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/trha/dwrite-everywhere" "work/ex/beta-1.38-1/sources/1.37.0/gh/trha/dwrite-everywhere"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/trha/dwrite-everywhere'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/trha/dwrite-everywhere" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trha/dwrite-everywhere"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trha/dwrite-everywhere'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a0aa13a8c66ae56a9a58716713ed7064df3360f3
[INFO] sha for GitHub repo trha/dwrite-everywhere: a0aa13a8c66ae56a9a58716713ed7064df3360f3
[INFO] validating manifest of trha/dwrite-everywhere on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of trha/dwrite-everywhere on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing trha/dwrite-everywhere
[INFO] finished frobbing trha/dwrite-everywhere
[INFO] frobbed toml for trha/dwrite-everywhere written to work/ex/beta-1.38-1/sources/1.37.0/gh/trha/dwrite-everywhere/Cargo.toml
[INFO] started frobbing trha/dwrite-everywhere
[INFO] finished frobbing trha/dwrite-everywhere
[INFO] frobbed toml for trha/dwrite-everywhere written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trha/dwrite-everywhere/Cargo.toml
[INFO] crate trha/dwrite-everywhere already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing trha/dwrite-everywhere against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/trha/dwrite-everywhere:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e94148c19b47b6a76fc90b1b702292fdc2d0259ab0290a5a19a8e960375b6812
[INFO] running `"docker" "start" "-a" "e94148c19b47b6a76fc90b1b702292fdc2d0259ab0290a5a19a8e960375b6812"`
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling winapi v0.3.5
[INFO] [stderr]    Compiling tap v0.2.1
[INFO] [stderr]    Compiling slice-pool v0.3.4
[INFO] [stderr]    Compiling direct2d v0.1.2 (https://github.com/Connicpu/direct2d-rs.git?rev=c2a1889#c2a18895)
[INFO] [stderr]    Compiling directwrite v0.1.2
[INFO] [stderr]    Compiling libudis86-sys v0.2.0
[INFO] [stderr]    Compiling errno v0.2.3
[INFO] [stderr]    Compiling mmap-fixed v0.1.5
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling gamma-lut v0.2.3
[INFO] [stderr]    Compiling generic-array v0.10.0
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling region v0.3.0
[INFO] [stderr]    Compiling wio v0.2.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling detour v0.5.0 (https://github.com/trha/detour-rs.git#15c39107)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/detour-rs-b8c4c0c13c15c763/15c3910/src/lib.rs:2:34
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(feature = "nightly", feature(const_fn, unboxed_closures))]
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `detour`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e94148c19b47b6a76fc90b1b702292fdc2d0259ab0290a5a19a8e960375b6812"`
[INFO] running `"docker" "rm" "-f" "e94148c19b47b6a76fc90b1b702292fdc2d0259ab0290a5a19a8e960375b6812"`
[INFO] [stdout] e94148c19b47b6a76fc90b1b702292fdc2d0259ab0290a5a19a8e960375b6812